Tule Creek is an intermittent stream draining Sonoran desertscrub in Yavapai Co., Arizona. An 800-m segment has perennial surface discharge and was the site of a ciénaga community dominated by Scirpus olneyi and Anemopsis californica. Extensive flooding in winter 1978 had the following immediate impacts on the system: 1) an introduced population of the endangered Sonoran topminnow (Poeciliopsis o. occidentalis) was destroyed, 2) substrate erosion and entrainment removed vegetation, reduced number of pools, straightened and deepened the channel; and 3) canyon treefrog (Hyla arenicolor) and saltcedar (Tamarix chinensis) were introduced.
The Southwestern Naturalist includes scientific manuscripts that deal with living or fossil organisms, assemblages, or ecosystems that occur in Mexico, Central America, and the region of the United States west of the Mississippi River and south of 40°N latitude. Acceptable topics include anatomy, physiology, genetics, behavior, natural history, dispersal, distribution, evolution, and systematics, but this list is not comprehensive. Both feature articles and notes are published.
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